{"id":1274,"date":"2017-06-28T13:29:16","date_gmt":"2017-06-28T13:29:16","guid":{"rendered":"http:\/\/buildsoftsupport.com\/?post_type=ht_kb&#038;p=1274"},"modified":"2026-10-20T13:00:44","modified_gmt":"2026-10-20T13:00:44","slug":"what-is-kmod","status":"publish","type":"ht_kb","link":"https:\/\/support.buildsoft.eu\/es\/knowledge-base\/what-is-kmod\/","title":{"rendered":"What is k<sub>mod<\/sub>?"},"content":{"rendered":"\n<p style=\"font-size:16px\">The <strong>strength properties<\/strong> of timber depend on<\/p>\n\n\n\n<ul>\n<li>the timber type (solid, glued, &#8230;)<\/li>\n\n\n\n<li>the load duration time (dead load is always present, wind loads are present for a shorter time, creep)<\/li>\n\n\n\n<li>and the climatic conditions (temperature, moisture variations).<\/li>\n<\/ul>\n\n\n\n<p>The effect of these three parameter on the strength properties, is taken into account by the factor k<sub>mod<\/sub>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">According to Eurocode<\/h2>\n\n\n\n<ul>\n<li>Values for k<sub>mod<\/sub> can be found in EN 1995-1-1 Table 3.1.<\/li>\n\n\n\n<li>k<sub>mod<\/sub> will adjust the material properties in the design of timber structures.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">In Diamonds<\/h2>\n\n\n\n<ul>\n<li>The values for k<sub>mod<\/sub> are implemented in the material library of Diamonds.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"1062\" height=\"691\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2025\/04\/kmod1b.png\" alt=\"\" class=\"wp-image-15190\"\/><\/figure>\n\n\n\n<ul>\n<li>The service class to determine the value of k<sub>mod<\/sub>, can be imposed in the Load group dialog <img decoding=\"async\" loading=\"lazy\" width=\"34\" height=\"33\" class=\"wp-image-1442\" style=\"width: 34px;\" src=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2017\/08\/KnopLastengroepen.png\" alt=\"\">.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"979\" height=\"384\" src=\"https:\/\/buildsoftsupport.com\/wp-content\/uploads\/2017\/06\/kmod2.png\" alt=\"\" class=\"wp-image-5773\" srcset=\"https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2017\/06\/kmod2.png 979w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2017\/06\/kmod2-300x118.png 300w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2017\/06\/kmod2-768x301.png 768w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2017\/06\/kmod2-50x20.png 50w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2017\/06\/kmod2-60x24.png 60w, https:\/\/support.buildsoft.eu\/wp-content\/uploads\/2017\/06\/kmod2-35x14.png 35w\" sizes=\"(max-width: 979px) 100vw, 979px\" \/><\/figure>\n\n\n\n<ul>\n<li>Where a load combination consists of actions belonging to different load duration classes, the value of k<sub>mod<\/sub> should correspond to the action with the shortest duration (EN 1995-1-1 \u00a7 3.1.3).<br>For example: for a combination of dead load and medium term load, a value of k<sub>mod<\/sub> corresponding with the medium-term load should be used.<\/li>\n<\/ul>\n\n\n\n<p style=\"font-size:16px\">Note: it is not possible to impose a climate class in PowerFrame. Each timber-quality has one k<sub>mod<\/sub> assigned, which will be used for all combinations. The value for k<sub>mod<\/sub> can be viewed\/changed with <em>Edit<\/em> &gt; <em>Material library<\/em>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The strength properties of timber depend on The effect of these three parameter on the strength properties, is taken into account by the factor kmod. According to Eurocode In Diamonds Note: it is not possible to impose a climate class in PowerFrame. Each timber-quality has one kmod assigned, which will&#8230;<\/p>\n","protected":false},"author":3,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":[],"ht-kb-category":[55,73],"ht-kb-tag":[451,446,449,502,503,1348,437,630,629,450],"_links":{"self":[{"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/ht-kb\/1274"}],"collection":[{"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/ht-kb"}],"about":[{"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/types\/ht_kb"}],"author":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/comments?post=1274"}],"version-history":[{"count":3,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/ht-kb\/1274\/revisions"}],"predecessor-version":[{"id":32487,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/ht-kb\/1274\/revisions\/32487"}],"wp:attachment":[{"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/media?parent=1274"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/ht-kb-category?post=1274"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/support.buildsoft.eu\/es\/wp-json\/wp\/v2\/ht-kb-tag?post=1274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}